Singly runway isn't about safety it's about saving money.
Out of 5000 staff nearly 1800 could be chopped
That's enormous.
A second runway needs fire, cover, ATC etc if they can get away with one runway like Manchester they will.
I predict some airports will close within 12 months if things don't pick up.
Many pax who are travelling now are simply using vouchers they were given to forestall refunds been given out.
The acid test will be quantifying what new money is coming in and whether people are travelling ?
Awful.